Refrigerator filter



FIG. 1 is a perspective view of a refrigerator filter showing the new design;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a rear elevation view thereof;

FIG. 4 is a left-side elevation view thereof;

FIG. 5 is a right-side elevation view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof;

FIG. 8 is another perspective view showing a state of use thereof; and,

FIG. 9 is a cross-sectional view taken along the line 9-9 of FIG. 6.

The broken lines in the drawing figures are for the purpose of illustrating an environment of use and form no part of the claimed design. 

CLAIM We claim the ornamental design for a refrigerator filter, as shown and described. 